Quarterly Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 36,871	$ 35,401	$ 34,039	$ 33,549	$ 32,947	$ 31,769	$ 30,347	$ 27,922	$ 139,860	$ 122,985	$ 121,768
Income from operations	2,387	2,505	2,948	1,766	860	98	(1,029)	(2,336)	$ 9,606	$ (2,407)	$ (239)
Net Income (loss)	1,232	1,829	2,829	1,035	434	(3,069)	(716)	(1,650)
Net income attributable to Owners of the Company	$ 1,232	$ 1,829	$ 2,829	$ 1,035	$ 434	$ (3,069)	$ (716)	$ (1,650)
Basic EPS	$ 0.03	$ 0.05	$ 0.08	$ 0.03	$ 0.01	$ (0.08)	$ (0.02)	$ (0.05)	$ 0.19	$ (0.14)	$ (0.02)
Diluted EPS	$ 0.03	$ 0.05	$ 0.07	$ 0.03	$ 0.01	$ (0.08)	$ (0.02)	$ (0.05)	$ 0.18	$ (0.14)	$ (0.02)