Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning balances, shares at Jun. 30, 2014		14,601
Beginning balances at Jun. 30, 2014	$ 2,333	$ 15	$ 114,423	$ (111,989)	$ (116)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	1,737		1,737
Exercise of options and warrants, shares		376
Exercise of options and warrants	589		589
Issuance of shares related to restricted stock, shares		189
Issuance of shares related to restricted stock	0
Shares canceled or surrendered as payment of tax withholding, shares		(129)
Repurchase of company stock, shares		(1,079)
Repurchase of company stock	(9,843)	$ (1)		(9,842)
Currency translation adjustment	(135)				(135)
Net income	7,125			7,125
Ending balances, shares at Jun. 30, 2015		13,958
Ending balances at Jun. 30, 2015	1,806	$ 14	116,749	(114,706)	(251)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	1,966		1,966
Exercise of options and warrants, shares		52
Exercise of options and warrants	527		527
Issuance of shares related to restricted stock, shares		76
Issuance of shares related to restricted stock	0
Shares canceled or surrendered as payment of tax withholding, shares		(58)
Currency translation adjustment	244				244
Net income	6,106			6,106
Ending balances, shares at Jun. 30, 2016		14,028
Ending balances at Jun. 30, 2016	10,649	$ 14	119,242	(108,600)	(7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	2,315		2,315
Exercise of options and warrants, shares		76
Exercise of options and warrants	42		42
Issuance of shares related to restricted stock, shares		166
Issuance of shares related to restricted stock	0
Shares canceled or surrendered as payment of tax withholding, shares		(38)
Currency translation adjustment	(87)				(87)
Net income	1,608			1,608
Ending balances, shares at Jun. 30, 2017		14,232
Ending balances at Jun. 30, 2017	$ 14,527	$ 14	$ 121,599	$ (106,992)	$ (94)