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Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2019 | Mar. 31, 2018 | Oct. 31, 2017 | Jul. 31, 2017 | Nov. 30, 2016
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |  |
Stock repurchase program, value of shares repurchased |  |  |  | $ 648 |  |  |
Maximum [Member] |  |  |  |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |  |
Stock repurchase program, number of outstanding shares authorized to repurchase |  |  |  |  | 966,000 | 905,000 |
November 2016 Stock Repurchase Program [Member] |  |  |  |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |  |
Stock repurchase program, number of outstanding shares authorized to repurchase |  |  |  |  |  |  | 750,000
Stock repurchase program, number of shares repurchased and retired |  |  |  | 30,977 |  |  |
Stock repurchase program, weighted average price |  |  |  | $ 3.99 |  |  |
Broker commission, per share |  |  |  | $ 0.03 |  |  |
Stock repurchase program, value of shares repurchased |  |  |  | $ 100 |  |  |
Stock repurchase program, completion date |  |  |  | 2017-07 |  |  |
July 2017 Stock Repurchase Program [Member] |  |  |  |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |  |
Stock repurchase program, number of shares repurchased and retired |  | 0 |  | 62,364 |  |  |
Stock repurchase program, weighted average price |  | $ 8.36 |  | $ 8.36 |  |  |
Broker commission, per share |  | $ 0.03 |  | $ 0.03 |  |  |
Stock repurchase program, value of shares repurchased |  | $ 500 |  | $ 500 |  |  |
Stock repurchase program, number of shares repurchased | 0 |  | 0 |  |  |  |

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