INVESTMENTS: (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis, Within 1 year	$ 307
Amortized Cost Basis, After 1 year through 5 years	295
Amortized Cost Basis, After 5 years through 10 years	304
Amortized Cost Basis, After 10 years	101
Amortized Cost Basis, Total debt securities	1,007
Fair Value, Within 1 year	307
Fair Value, After 1 year through 5 years	301
Fair Value, After 5 years through 10 years	305
Fair Value, After 10 years	102
Fair Value, Total debt securities	$ 1,015