3. BALANCE SHEET DETAIL - Property, Plant and Equipment (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017
Property and equipment, net:
Property and equipment, gross	$ 30,735,000		$ 30,735,000		$ 30,360,000
Less: Accumulated depreciation	(23,140,000)		(23,140,000)		(22,671,000)
Property, Plant and Equipment, Net, Total	7,595,000		7,595,000		7,689,000
Depreciation	241,000	$ 305,000	469,000	$ 629,000
Computer and other equipment
Property and equipment, net:
Property and equipment, gross	18,792,000		18,792,000		18,585,000
Software
Property and equipment, net:
Property and equipment, gross	4,902,000		4,902,000		4,793,000
Land
Property and equipment, net:
Property and equipment, gross	3,900,000		3,900,000		3,900,000
Building and building improvements
Property and equipment, net:
Property and equipment, gross	2,305,000		2,305,000		2,256,000
Furniture and fixtures
Property and equipment, net:
Property and equipment, gross	111,000		111,000		111,000
Leasehold improvements
Property and equipment, net:
Property and equipment, gross	$ 725,000		$ 725,000		$ 715,000