Condensed Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands		Total	Adjustment	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings		Retained Earnings Adjustment	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interests
Balance at Mar. 31, 2019		$ 23,358	$ (41)	$ 506		$ 2,866	$ 21,191		$ (41)	$ (205)	$ (1,000)
Balance (in shares) at Mar. 31, 2019				2,022
Increase (Decrease) in Stockholders' Equity
Net income (loss)		3,816					1,782				2,034
Repurchase of Common Stock		(126)		$ (4)			(122)			0
Repurchase of Common Stock (in shares)				(17)
Stock Split		0		$ 252		(252)
Stock Split (in shares)				1,010
Issuance of Debt - Trust Preferred Securities		(4,000)					(4,000)
Issuance of Warrants		(840)					(840)
Unrealized gain (loss) on interest rate swaps, net of tax		(176)								(176)
Foreign currency translation (loss) gain		(18)								(30)	12
Adjustment to fair value of redeemable non-controlling interests		(985)				(985)
Balance at Jun. 30, 2019		20,988		$ 754		1,629	17,970			(411)	1,046
Balance (in shares) at Jun. 30, 2019				3,015
Balance at Mar. 31, 2019		23,358	(41)	$ 506		2,866	21,191		(41)	(205)	(1,000)
Balance (in shares) at Mar. 31, 2019				2,022
Increase (Decrease) in Stockholders' Equity
Unrealized gain (loss) on interest rate swaps, net of tax		(264)
Foreign currency translation (loss) gain		23
Balance at Sep. 30, 2019		27,347		$ 756		2,410	23,610			(461)	1,032
Balance (in shares) at Sep. 30, 2019				3,023
Balance at Mar. 31, 2019		23,358	$ (41)	$ 506		2,866	21,191		$ (41)	(205)	(1,000)
Balance (in shares) at Mar. 31, 2019				2,022
Balance at Mar. 31, 2020		$ 25,011		$ 756	$ (2,617)	2,636	23,768			(537)	1,005
Balance (in shares) at Mar. 31, 2020				3,023	141
Increase (Decrease) in Stockholders' Equity
Accounting Standards Update [Extensible List]		us-gaap:AccountingStandardsUpdate201602Member
Balance at Jun. 30, 2019		$ 20,988		$ 754		1,629	17,970			(411)	1,046
Balance (in shares) at Jun. 30, 2019				3,015
Increase (Decrease) in Stockholders' Equity
Net income (loss)		5,698					5,715	[1]			(17)	[1]
Repurchase of Common Stock		(73)		$ 2		0	(75)			0
Repurchase of Common Stock (in shares)				8
Unrealized gain (loss) on interest rate swaps, net of tax		(88)								(88)
Foreign currency translation (loss) gain		41								38	3
Adjustment to fair value of redeemable non-controlling interests		781				781
Balance at Sep. 30, 2019		27,347		$ 756		2,410	23,610			(461)	1,032
Balance (in shares) at Sep. 30, 2019				3,023
Balance at Mar. 31, 2020		25,011		$ 756	$ (2,617)	2,636	23,768			(537)	1,005
Balance (in shares) at Mar. 31, 2020				3,023	141
Increase (Decrease) in Stockholders' Equity
Net income (loss)	[1]	(846)			$ 0		(841)				(5)
Unrealized gain (loss) on interest rate swaps, net of tax		(26)								(26)
Foreign currency translation (loss) gain		(67)		$ 0						(67)
Adjustment to fair value of redeemable non-controlling interests		429				429
Balance at Jun. 30, 2020		24,501		$ 756	$ (2,617)	3,065	22,927			(630)	1,000
Balance (in shares) at Jun. 30, 2020				3,023	141
Balance at Mar. 31, 2020		25,011		$ 756	$ (2,617)	2,636	23,768			(537)	1,005
Balance (in shares) at Mar. 31, 2020				3,023	141
Increase (Decrease) in Stockholders' Equity
Unrealized gain (loss) on interest rate swaps, net of tax		29
Foreign currency translation (loss) gain		(135)
Adjustment to fair value of redeemable non-controlling interests		(500)
Balance at Sep. 30, 2020		20,670		$ 756	$ (2,617)	2,175	20,007			(643)	992
Balance (in shares) at Sep. 30, 2020				3,023	141
Balance at Jun. 30, 2020		24,501		$ 756	$ (2,617)	3,065	22,927			(630)	1,000
Balance (in shares) at Jun. 30, 2020				3,023	141
Increase (Decrease) in Stockholders' Equity
Net income (loss)	[1]	(2,928)					(2,920)				(8)
Unrealized gain (loss) on interest rate swaps, net of tax		55								55
Foreign currency translation (loss) gain		(68)								(68)
Adjustment to fair value of redeemable non-controlling interests		(890)				(890)
Balance at Sep. 30, 2020		$ 20,670		$ 756	$ (2,617)	$ 2,175	$ 20,007			$ (643)	$ 992
Balance (in shares) at Sep. 30, 2020				3,023	141

[1] Excludes amount attributable to redeemable non-controlling interest in Contrail.