Line of Credit	12 Months Ended
Mar. 31, 2018
Debt Disclosure [Abstract]
Line of Credit	Note 12 — Line of Credit In September 2017, the Company renewed a line of credit agreement. The line is with a financial institution to provide a revolving credit facility with borrowing capacity of up to $10 million. Borrowings under this agreement, as amended, bear interest, at the Company’s option, at a fixed LIBOR-based rate plus 1.50% or at a fluctuating rate determined by the financial institution to be 1.50% above the daily one-month LIBOR rate. The loan covenants require the Company to maintain a current assets to liabilities ratio of at least 1.25:1, debt to tangible net worth ratio not greater than 1.25:1 and to have positive net income. There were no outstanding revolving loans as of March 31, 2018, but letters of credit in the aggregate amount of $4.5 million have been issued separate from the line of credit and therefore do not reduce the amount of borrowings available under the revolving credit facility. In the event of default, the financial institution has a right of setoff against our cash balances on deposit with the financial institution to the extent there is unpaid principal and interest related to the line of credit. The credit agreement expires in September 2018.

Line of Credit

12 Months Ended

Mar. 31, 2018

Note 12 — Line of Credit

In September 2017, the Company renewed a line of credit agreement. The line is with a financial institution to provide a revolving credit facility with borrowing capacity of up to $10 million. Borrowings under this agreement, as amended, bear interest, at the Company’s option, at a fixed LIBOR-based rate plus 1.50% or at a fluctuating rate determined by the financial institution to be 1.50% above the daily one-month LIBOR rate. The loan covenants require the Company to maintain a current assets to liabilities ratio of at least 1.25:1, debt to tangible net worth ratio not greater than 1.25:1 and to have positive net income. There were no outstanding revolving loans as of March 31, 2018, but letters of credit in the aggregate amount of $4.5 million have been issued separate from the line of credit and therefore do not reduce the amount of borrowings available under the revolving credit facility. In the event of default, the financial institution has a right of setoff against our cash balances on deposit with the financial institution to the extent there is unpaid principal and interest related to the line of credit. The credit agreement expires in September 2018.