Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Revision of prior period, accounting standards update, adjustment	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Retained Earnings Revision of prior period, accounting standards update, adjustment	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Revision of prior period, accounting standards update, adjustment	Non-controlling Interests*
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASU 2016-01	$ 24,243	$ 0	$ 511		$ 4,172	$ 20,696	$ (106)	$ (261)	$ 106	$ (875)
Adoption ASC 842 - Leasing	24,243	0	$ 511		4,172	20,696	(106)	(261)	106	(875)
Balance (in shares) at Mar. 31, 2018			2,044,000
Balance at Mar. 31, 2018	24,243	0	$ 511		4,172	20,696	(106)	(261)	106	(875)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,174					1,340				(166)
Adoption of ASU 2016-01	24,243	(41)	$ 506		2,867	21,191	(41)	(205)	106	(1,001)
Foreign currency translation gain	225							185		40
Repurchase of common stock (in shares)			(23,000)
Repurchase of common stock	$ (745)		$ (6)			(739)
Exercise of stock options (in shares)	2,523		2,000
Exercise of stock options	$ 18		$ 1		17
Unrealized loss on interest rate swaps, net of tax	(235)							(235)
Adjustment to fair value of redeemable non-controlling interest	(1,322)				(1,322)
Adoption ASC 842 - Leasing	24,243	(41)	$ 506		2,867	21,191	(41)	(205)	$ 106	(1,001)
Balance (in shares) at Mar. 31, 2019			2,023,000
Balance at Mar. 31, 2019	23,358	(41)	$ 506		2,867	21,191	(41)	(205)		(1,001)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASU 2016-01	23,358	(41)	506		2,867	21,191	(41)	(205)		(1,001)
Adoption ASC 842 - Leasing	23,358	(41)	506		2,867	21,191	(41)	(205)		(1,001)
Net income	9,647					7,656				1,991
Adoption of ASU 2016-01	25,011	(41)	$ 756	$ (2,617)	2,636	23,768	(41)	(537)		1,005
Foreign currency translation gain	$ 212							197		15
Repurchase of common stock (in shares)	(9,766)		(10,000)	141,000
Repurchase of common stock	$ (2,817)		$ (2)	$ (2,617)		(198)
Exercise of stock options (in shares)	0
Unrealized loss on interest rate swaps, net of tax	$ (529)							(529)
Stock split (in shares)			1,010,000
Stock Split	0		$ 252		(252)
Issuance of Debt - Trust Preferred Securities	(4,000)					(4,000)
Issuance of Warrants	(840)					(840)
Adoption ASC 842 - Leasing	25,011	$ (41)	$ 756	$ (2,617)	2,636	23,768	$ (41)	(537)		1,005
Adjustment to fair value of redeemable non-controlling interest	21				21
Balance (in shares) at Mar. 31, 2020			3,023,000	141,000
Balance at Mar. 31, 2020	25,011		$ 756	$ (2,617)	2,636	23,768		(537)		1,005
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASU 2016-01	25,011		756	(2,617)	2,636	23,768		(537)		1,005
Adoption ASC 842 - Leasing	$ 25,011		$ 756	$ (2,617)	$ 2,636	$ 23,768		$ (537)		$ 1,005