Quarterly report pursuant to Section 13 or 15(d)

Uncategorized Items - ntus-20200930.htm

v3.20.2
Label Element Value
Cumulative Effect, Period of Adoption, Adjustment [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest $ 0
Cumulative Effect, Period of Adoption, Adjustment [Member] | Retained Earnings [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest 1,332,000
Cumulative Effect, Period of Adoption, Adjustment [Member] | AOCI Attributable to Parent [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest $ (1,332,000)