Share Repurchase Program (Details) - Common Stock [Member] - USD ($)	12 Months Ended
	Mar. 31, 2017	Mar. 27, 2017	Jun. 09, 2016	Mar. 31, 2016
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, approved amount		$ 15,000,000	$ 10,000,000	$ 5,000,000
Shares utilized, amount	$ 2,379,000
Shares available for repurchase, amount	$ 12,621,000
Shares repurchased and retired (in shares)	69,659